4-Hydroxy-2-methylbenzoic acid

Basic Information

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CAS Number

578-39-2

Molecular Formula

C8H8O3

Molecular Weight

152.15 g/mol

EINECS

209-422-1

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Physical State

White to Light yellow to Light orange

Melting Point

177-181 °C

Boiling Point

339.1±30.0 °C(Predicted)

Density

1.304±0.06 g/cm3(Predicted)

Flash Point

173.1℃

Solubility

soluble in Methanol

Refractive Index

1.599

SMILES

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CC1=C(C=CC(=C1)O)C(=O)O

InChI

InChI=1S/C8H8O3/c1-5-4-6(9)2-3-7(5)8(10)11/h2-4,9H,1H3,(H,10,11)

InChIKey

BBMFSGOFUHEVNP-UHFFFAOYSA-N

LogP

1.3988200000000002

pKa

4.46±0.25(Predicted)

Topological Polar Surface Area

57.53 Å²

Hydrogen Bond Donor/Acceptor

2 / 3

Complexity

155

Safety Information

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Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Synonyms & References

English

4-Hydroxy-o-toluic acid
Benzoic acid, 4-hydroxy-2-methyl-
CS-W016305
CHEBI:167791
Z1255361025
U4NMG5AH8R
NSC-85496
CHEMBL4250257
MFCD02182261
4-hydroxy-2-methylbenzoic acid
2-Methyl-4-hydroxybenzoicacid
4-hydroxy-2-methylbenzoicacid
EN300-117016
A8235
BBMFSGOFUHEVNP-UHFFFAOYSA-N
4-Hydroxy-2-methyl benzoic acid
methyl p-hydroxybenzoic acid
AC-7750
FT-0651272
(4-Propoxy-3-methylphenyl)boronicacid
NSC 85496
AKOS005256094
H1311
EINECS 209-422-1
DTXSID10206490
SY014356
2-methyl-4-hydroxybenzoic acid
578-39-2
para-hydroxy-methyl-benzoic acid
AM20060677
J-515477

MDL Number

MFCD02182261

EC Number

209-422-1

Customs Code

29182900

FAQ

What is 4-Hydroxy-2-methylbenzoic acid (CAS: 578-39-2)?

4-Hydroxy-2-methylbenzoic acid is a phenolic carboxylic acid with the molecular formula C8H8O3. It is a white crystalline solid with a pungent odor. It is soluble in water and ethanol.

What are the main uses of 4-Hydroxy-2-methylbenzoic acid (CAS: 578-39-2)?

4-Hydroxy-2-methylbenzoic acid is primarily used in the pharmaceutical industry as a precursor for the synthesis of other compounds. It is also used in the production of dyes, pigments, and resins.

Is 4-Hydroxy-2-methylbenzoic acid (CAS: 578-39-2) safe?

4-Hydroxy-2-methylbenzoic acid is generally safe for industrial use, but handling should be done with care. It may cause irritation to the eyes and skin. It is not considered extremely toxic, but appropriate personal protective equipment, such as gloves and goggles, should be worn. Follow safety data sheet (SDS) guidelines for disposal and storage.

How should 4-Hydroxy-2-methylbenzoic acid (CAS: 578-39-2) be stored?

4-Hydroxy-2-methylbenzoic acid should be stored in a cool, dry place away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent moisture absorption. Maintain temperatures below 25°C (77°F) to ensure stability. Avoid contact with incompatible materials such as alkalis and oxidizers.